runwayinuse

C75 Marshall County

?
UNKNOWN

Unknown — not enough evidence to call a runway

We don't know, and saying so beats guessing. No D-ATIS feed here — a voice ATIS/AWOS may exist; check the frequency. No ADS-B traffic data available. No weather observation available.

certainty: — evidence: NONE no tower now

N 13 31 18 36

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13 26% 4003 ft
31 26% 4003 ft · right traffic
18 24% 2199 ft
36 24% 2199 ft
Why — evidence behind this answer

Runway 13

Runway 31

Runway 18

Runway 36

Sources consulted

sourcestatus agenote
D_ATISUNAVAILABLE No D-ATIS at this field
METARUNAVAILABLE No weather observation found
ADSBUNAVAILABLE No ADS-B track history here yet
NOTAMOK
CIFPNOT_CONFIGURED Instrument procedures: phase 4

Recent operations

No operations observed in the last hour. (No ADS-B track history here yet)

Was this right?

C75 field & runways

Marshall County, Lacon, Illinois. Field elevation 584 ft. Non-towered (NON-ATCT). Magnetic variation 1.0°W on record, 2.8°W today.

The FAA's variation of record is the number this field was surveyed against; the second is where north points now, from WMM2025. It is moving 0.042°/year west — about 1° every 24 years — which is why runway numbers eventually stop matching their pavement.

Runway data from the FAA NASR 01 Oct 2026 cycle. Where NASR locates both thresholds, the true heading is the bearing between them rather than NASR's whole-degree alignment. Magnetic is that heading against today's declination from WMM2025, not the field's variation of record — so it can differ from the chart by the gap between the two shown above. The number painted on the runway is the one ATC uses.
RunwayTrueMagnetic Number LengthSurfacePattern Notes
13 128.3° 131.1° matches 4,003 ft ASPH
18 181.3° 184.1° matches rule gives runway 19 in ~20 yr 2,199 ft ASPH left
31 308.3° 311.1° matches 4,003 ft ASPH right
36 1.3° 4.1° matches rule gives runway 1 in ~20 yr 2,199 ft ASPH left

Generated 09:12:10Z · auto-refreshes · JSON